7. _Acasta fenestrata_, Darwin. ('Balanidæ,' p. 316, Tab. 9, fig. 7.)
A. testâ subrufâ, foraminibus magnis membranâ-tectis inter suturas
suprà basin proximis, 6; parietibus carino-lateralibus 1/2 parietum
lateralium latitudine: intùs, parietibus et basis acie lævibus: tergi
cristâ articulari brevi prominente; calcare acuminato.
_Hab._--In Archipel. Philippino.
A Monograph on the Sub-class Cirripedia (Volume 2 of 2) The Balanidæ, (or Sessile Cirripedes); the Verrucidæ, etc., etc. · 第 256 / 417 题